More tool manuals added

13 new manuals have been added to the site over the past few days:

- Craftsman: 1 tool set parts list
- Milwaukee: 4 hammer parts lists
- Porter-Cable: 1 air compressor manual, 1 grinder manual, 1 saw parts list
- Ridgid: 1 drill parts list, 1 drill press parts list, 1 sander manual, 2 saw manuals